quarter {lubridate} | R Documentation |
Fiscal quarters are a way of dividing the year into fourths. The first quarter (Q1) comprises January, February and March; the second quarter (Q2) comprises April, May, June; the third quarter (Q3) comprises July, August, September; the fourth quarter (Q4) October, November, December.
quarter(x, with_year = FALSE)
x |
a date-time object of class POSIXct, POSIXlt, Date, chron, yearmon, yearqtr, zoo, zooreg, timeDate, xts, its, ti, jul, timeSeries, fts or anything else that can be converted with as.POSIXlt |
with_year |
logical indicating whether or not to include the quarter's year. |
numeric the fiscal quarter that the date-time occurs in
x <- ymd(c("2012-03-26", "2012-05-04", "2012-09-23", "2012-12-31")) quarter(x) # 1 2 3 4 quarter(x, with_year = TRUE) # 2012.1 2012.2 2012.3 2012.4